Wigner function of a qubit
Tom 110 / 2016
Banach Center Publications 110 (2016), 121-129 MSC: Primary 81S10; Secondary 53D50. DOI: 10.4064/bc110-0-9
We show that real polarization method can be effectively used to geometrically quantize physical systems with compact phase space, like the spin. Our method enables us to construct a wave function of a qubit in both position and momentum representations and also its Wigner function. These results can be used in quantum informatics.